GB/T 28971-2012 English PDF

US$399.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 28971-2012: Cigarettes -- Determination of tobacco specific N-nitrosamines in side stream smoke -- GC-TEA method
Status: Obsolete

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 28971-2012	399	Add to Cart	3 days	Cigarettes -- Determination of tobacco specific N-nitrosamines in side stream smoke -- GC-TEA method	Obsolete

Similar standards

GB 41700   GB/T 22838.2   GB 5606.5   GB 45437   GB 15269   GB/T 19609   

Basic data

Standard ID: GB/T 28971-2012 (GB/T28971-2012)
Description (Translated English): Cigarettes -- Determination of tobacco specific N-nitrosamines in side stream smoke -- GC-TEA method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: X87
Classification of International Standard: 65.160
Word Count Estimation: 10,185
Quoted Standard: GB/T 6682; GB/T 19609; YC/T 185
Regulation (derived from): National Standards Bulletin No. 41 of 2012
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the cigarette sidestream smoke of N- nitrosonornicotine (NNN), N- nitroso neonicotinoid (NAT), N- nitroso anabasine (NAB) and 4 (DMN -yl) -1 (3 pyridyl) -1 butanone (NNK) 4 tobacco provides specific nitrosamines by gas chromatograp

GB/T 28971-2012: Cigarettes -- Determination of tobacco specific N-nitrosamines in side stream smoke -- GC-TEA method

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Cigarettes. Determination of tobacco specific N-nitrosamines in sidestream smoke. GC-TEA method ICS 65.160 X87 National Standards of People's Republic of China Cigarette sidestream smoke of tobacco-specific nitrosamines N- Gas chromatography - thermal energy analyzer method Issued on. 2012-12-31 2013-06-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard was drafted in accordance with the rules of GB/T 1.1-2009 and GB/T 20001.4-2001 given. Please note that some of the content of this document may involve patents. Release mechanism of the present document does not assume responsibility for the identification of these patents. This standard was proposed by the State Tobacco Monopoly Bureau. This standard by the National Standardization Technical Committee on Tobacco (SAC/TC144) centralized. This standard drafting units. China Tobacco Corporation, Zhengzhou Tobacco Research Institute, Hongta Tobacco (Group) Co., Ltd. The main drafters of this standard. Liu Jian, willow, Wang Hongbo, Peng Bin, Zhangfeng Mei, Pang Yongqiang, Zhao, Zhang Xiaobing, Xie Wei complex, Huang hair, If the white stone. Cigarette sidestream smoke of tobacco-specific nitrosamines N- Gas chromatography - thermal energy analyzer method

1 Scope

This standard specifies the cigarette sidestream smoke N- nitroso Nornicotine (NNN), N- nitroso neonicotinoid (NAT), N- nitroso Anabasis Thieves base (NAB) and 4- (DMN-yl) -1- (3-pyridyl) -1-butanone (NNK) 4 growing tobacco specific nitrosamines GC - heat points Analyzer measurement method. This standard applies to the determination of cigarette sidestream smoke NNN, NAT, NAB, NNK four kinds of tobacco-specific nitrosamines. The method for determining cigarette sidestream smoke NNN detection limit of 1.0ng/cig, the limit of quantification of 3.3ng/cig; NAT detection limit 0.9ng/cig, the limit of quantification of 2.9ng/cig; NAB detection limit of 1.0ng/cig, the limit of quantification of 3.5ng/cig; NNK detection limit 1.0ng/cig, the limit of quantification of 3.5ng/cig.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. Laboratory use specifications and test methods GB/T 6682 Analysis GB/T 19609 cigarettes by conventional analytical determination of total particulate matter and tar smoking machine Determination YC/T 185 sidestream smoke cigarette tar and nicotine

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 Tobacco-specific nitrosamines N- tobaccospecificN-nitrosamines (TSNAs) Only present in tobacco and tobacco products in the N- nitrosamines. Principle 4 After use of ascorbic acid-treated glass fiber filters and sidestream fishtail special suction hood were trapped cigarette sidestream smoke total particulate Was extracted with dichloromethane particulate matter of TSNAs, the extract was concentrated and purified by column chromatography on basic alumina. By gas chromatography - Thermal analysis spectrometer (GC-TEA) Determination of extract nitrosamines.

5 Reagents and materials

In addition to special requirements, should use analytical reagent grade water should be consistent with GB/T 6682 stipulated two of water. Warning --- NNN and NNK is a strong carcinogen. All pre-processing operations should be carried out in a fume hood, laboratory personnel should wear anti Mitts, masks for safety. After the experiment to the waste collected centrally. ......

Image     

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 28971-2012_English be delivered?

Answer: Upon your order, we will start to translate GB/T 28971-2012_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 28971-2012_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 28971-2012_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.